Wii U vs PS4 vs Xbox One FULL SPECS (January 24, 2014)

[drkohler]

Sirius87 said:

But can't AMD modify the memory controller? Without doing that of course there won't be a higher bandwidth possible. But as GPUs all the time use different bus width I thought that changing some parts will also be possible in the APU.

Of course AMD can change things. Makes the chips more complex and bigger (translation: a lot more expensive). The point, however, is not to design a console with world-record-memory throughput, the point is get to 1080p/60Hz as cheap as possible.

There is a point, though, when your cache controller outfoxes your memory bandwidth (basically meaning all the data required by the CPU is in the cache, no matter how wide your memory controller shuffles data). On the PC, that bus size is apparently 128bit. Then you can play with more channels.. but it gets more expensive. With APU, things get even more complex as the bus width is doubled inside the chip for the GPu part. (Still APU was not a good GPU idea for a console that strives for high graphics performance).